Suppression of the vortex glass transition due to correlated defects with a persistent direction perpendicular to an applied magnetic field

Abstract

It is found on the basis of the lowest Landau level approach for the Ginzburg-Landau model that, in bulk type II superconductors with strong line disorder directed {\it perpendicularly} to an applied field, the continuous vortex-glass transition is depressed to the low $T$ limit in the limit of weak {\it point} disorder. An anomalous resistive broadening in twin-free YBCO with columnar defects in a field parallel to the layers is discussed based on this theoretical finding. Other phenomena which, we argue, arise indirectly from this mechanism in type II superconductors including correlated defects are also discussed.

arXiv comment5 pages, 3 figures, Fig.2 and text were modified. To appear in Phys. Rev. B (Rapid Comunication)

References in corpus (6)

• The Bose-glass phase in twinned YBaCuO(123)
• Simulation Studies on the Stability of the Vortex-Glass Order
• Theoretical Description of Resistive Behavior near a Quantum Vortex-Glass Transition
• The High-Field Superconducting Transition induced by Correlated Disorder
• Josephson Vortex States in Intermediate Fields
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Cited by in corpus (2)

• Superconducting transition in disordered granular superconductors in magnetic fields
• Effect of in-plane line defects on field-tuned superconductor-insulator transition behavior in homogeneous thin film